Home / 22,749.66-31,395.60-13,321.26

Finding the Fourth Proportional to 22,749.66, 31,395.60 and 13,321.26

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Solution

The fourth proportional to 22,749.66, 31,395.60 and 13,321.26 is: 18,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,749.66 : 31,395.60 = 13,321.26 : x
  2. Step 2: Convert to fraction form
    22,749.66/31,395.60 = 13,321.26/x
  3. Step 3: Cross multiply
    22,749.66x = 31,395.60 × 13,321.26
  4. Step 4: Simplify right side
    22,749.66x = 418,228,950.46
  5. Step 5: Solve for x
    x = 418,228,950.46/22,749.66
  6. Step 6: Final answer
    x = 18,383.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.